Speaking before a gathering of African health ministers on Monday, the leader of the World Health Organization (WHO) said that the blame for the Ebola crisis lays largely on the "profit-driven" pharmaceutical industry, which does not invest in cures "for markets that cannot pay."

WHO director-general Dr. Margaret Chan made the comments while speaking before the Regional Committee for Africa, made up of representatives from the 47 African nations, which is meeting this week in Cotonou, Republic of Benin.